Gasera (Finland)

output

20192022

most citedBroadband photoacoustic spectroscopy of

^{14} CH_{4}

with a high-power mid-infrared optical frequency comb

39 citations

researchers with a paper here

J. Karhu3 · h 10
T. Hieta3 · h 15
G. Genoud2 · h 16
L. Halonen2 · h 43
M. Vainio2 · h 24
S. Bell2 · h 9
T. Tomberg2 · h 8
Erkki Ikonen1
Farshid Manoocheri1
Francisco Senna Vieira1 · h 3
Juho Karhu1
Markku Vainio1

collaborating institutions

University of HelsinkiFI4 papers
VTT Technical Research Centre of FinlandFI3 papers
Aalto UniversityFI2 papers
National Physical LaboratoryGB2 papers
Tampere UniversityFI2 papers
National metrology institute VTT MIKESFI1 paper

Showing physics.ins-detShow all

2 papers · 1 filter

physics.ins-det2022★ 6 cited

Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection

Juho Karhu, Tuomas Hieta

A real time trace gas detector for benzene is demonstrated. The measurement system takes an advantage of modest enrichment through short adsorption periods to reach a ppt-level det…

physics.ins-det2021

LED based photoacoustic NO $_{2}$ sensor with sub-ppb detection limit

Juho Karhu, Tuomas Hieta, Farshid Manoocheri +2

A high-sensitivity LED based photoacoustic NO $_{2}$ sensor is demonstrated. Sensitive photoacoustic gas sensors based on incoherent light sources are typically limited by background…

Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection

LED based photoacoustic NO2​ sensor with sub-ppb detection limit

LED based photoacoustic NO $_{2}$ sensor with sub-ppb detection limit